Uru Age Manager
The Uru Age Manager is a sub-tool of Drizzle and, to no surprise, manages the Ages of your Uru: Complete Chronicles installation by downloading, installing, updating and removing them.
Setup
UAM gets the ages from an age database which the user can configure. The one that is set up per default is however no longer maintained, so you will not be able to download recent age releases there. To fix that, hit the "Change Server" button in the UAM tab, and enter the following URL: http://www.the-deep-island.de/uru-ages/. Then hit "Ok" and finally "Get Latest List". Now your Drizzle will connect to the Deep Island UAM database, which should contain up-to-date versions of all ages.
Usage
UAM is relatively easy to use: After launching Drizzle, select the "UruAgeManager" tab at the top left of the Drizzle window. Hit the "Select" button next to "Pots folder" and choose the directory you installed Uru to, then hit "Ok". Now you can "Get the latest age list" to download the information about all ages available through Drizzle. If you want that to automatically happen each time you start Drizzle (so you don't miss any age update), you can select the appropriate option at the top right of the window.
Now UAM is set up, and you can browse the list of ages, select whatever you want, and hit "Download" to download the latest version and install or update your installation to use it. To actually reach these ages within Uru, you need the Offline KI, which you can easily install through Drizzle as well: It's at the top of the age list.
Uploading an age
The recommended way to release a new age or an update is to upload it to some One-click hoster and announce the release at the GoW forums. Then Shard and UAM database administrators can pick it up, so explorers can install it without messing with the bare age files.